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TÜBİTAK

Turkish Journal of Zoology

Water quality

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Macroinvertebrate-Based Biotic Indices For Evaluating Thewater Quality Of Kargı Stream (Antalya, Turkey), Melek Zeybek Jan 2017

Macroinvertebrate-Based Biotic Indices For Evaluating Thewater Quality Of Kargı Stream (Antalya, Turkey), Melek Zeybek

Turkish Journal of Zoology

The aim of this study was to determine the water quality of Kargı Stream, Antalya, Turkey, in terms of physical and chemical parameters and biotic indices. For this purpose, macrozoobenthic invertebrates and water samples were taken from each of the selected seven stations seasonally. The Belgian Biotic Index, BMWP and ASPT indices, and species diversity indices were applied for determining the water quality by using the ASTERICS software program. With the identification of the collected organisms, a total of 126 taxa including 4 taxa from Gastropoda, 5 taxa from Oligochaeta, 1 taxon from Malacostraca, 84 taxa from Insecta, and 32 …


A Comparative Study Of The Aquatic Insect Diversity Of Two Ponds Located In Cachar District, Assam, India, Arpita Dalal, Susmita Gupta Jan 2016

A Comparative Study Of The Aquatic Insect Diversity Of Two Ponds Located In Cachar District, Assam, India, Arpita Dalal, Susmita Gupta

Turkish Journal of Zoology

Ponds play a vital role in the conservation of aquatic biodiversity at the local level apart from other lakes and rivers. A comparative study was carried out on the aquatic insect diversity of two different ponds, one in an urban area (urban pond, UP) and another in a rural area (Jalinga pond, JP). Two seasonal collections (postmonsoon and winter) were made to check the pollution status of the two ponds based on the aquatic insect community and physicochemical properties of water. Consequently, 29 species, 17 families, and 5 orders of aquatic insects from UP and 17 species, 8 families, and …


Does Light Duration (Photoperiod) Have An Effect On The Mortality And Welfare Of Cultured Oreochromis Niloticus And Clarias Gariepinus?, Moshood Keke Mustapha, Olatoyosi Taofeek Oladokun, Mubarak Mayowa Salman, Idris Adewale Adeniyi, Dele Ojo Jan 2014

Does Light Duration (Photoperiod) Have An Effect On The Mortality And Welfare Of Cultured Oreochromis Niloticus And Clarias Gariepinus?, Moshood Keke Mustapha, Olatoyosi Taofeek Oladokun, Mubarak Mayowa Salman, Idris Adewale Adeniyi, Dele Ojo

Turkish Journal of Zoology

One hundred and eighty juveniles of Oreochromis niloticus with a respective smean total length and weight of 7.30 ± 0.5 cm and 7.05 ± 0.5 g and 180 fry of Clarias gariepinus with a mean total length and weight of 14.90 ± 0.1 cm and 32.10 ± 0.5 g were separately cultured in 3 replicates in 18 plastic tanks (1 × 1 × 0.5 m; 200 L), 9 for O. niloticus and 9 for C. gariepinus, for photoperiods of 24 L: 0 D, 0 L: 24 D, and 12 L: 12 D for 13 weeks. Mortality and welfare impairment were …


The Use Of Bmwp And Aspt Indices For Evaluation Of Water Quality According To Macroinvertebrates In Değirmendere Stream (Isparta, Turkey), Melek Zeybek, Hasan Kalyoncu, Büşra Karakaş, Seda Özgül Jan 2014

The Use Of Bmwp And Aspt Indices For Evaluation Of Water Quality According To Macroinvertebrates In Değirmendere Stream (Isparta, Turkey), Melek Zeybek, Hasan Kalyoncu, Büşra Karakaş, Seda Özgül

Turkish Journal of Zoology

This study was carried out between March 2011 and February 2012 on Değirmendere Stream in order to determine the water quality of the stream, and to investigate the environmental quality and the applicability of both the Biological Monitoring Working Party (BMWP; Original, Spanish, Hungarian, Czech, and Polish versions) and Average Score Per Taxon (ASPT; Original, Hungarian, and Czech versions) indices. The biotic and diversity indices were applied using the ASTERICS software program. As a result, a total of 59 taxa were detected: 4 taxa from Gastropoda, 1 taxon from Bivalvia, 1 taxon from Oligochaeta, 1 taxon from Hirudinea, 2 taxa …


Evaluation Of Vertical And Horizontal Changes In Community Structure Of Zooplankton In A Deep Dam Lake, Di̇dem Gökçe, Duygu Özhan Turhan Jan 2014

Evaluation Of Vertical And Horizontal Changes In Community Structure Of Zooplankton In A Deep Dam Lake, Di̇dem Gökçe, Duygu Özhan Turhan

Turkish Journal of Zoology

The purpose of this study was to describe the horizontal and vertical distributions of the zooplankton community structure in Karakaya Dam Lake. Rotifers were numerically dominant (81.89%) in the community during the study period; they were followed by Copepoda (10.32%) and Cladocera (7.79%). In the metalimnetic maximum oxygen zone between 5 and 10 m, cladocerans made up 70.1% of the total number of zooplankton in June and 27.3% of the total number of zooplankton in November. Oxygen values decreased at 10 and 15 m in September and November. While the abundance of rotifers and cladocerans decreased as well, cyclopoids increased …


The Ecology Of Freshwater Bivalves In The Lake Sapanca Basin, Turkey, Ertan Ercan, Özcan Gaygusuz, Ali̇ Serhan Tarkan, Martin Reichard, Carl Smith Jan 2013

The Ecology Of Freshwater Bivalves In The Lake Sapanca Basin, Turkey, Ertan Ercan, Özcan Gaygusuz, Ali̇ Serhan Tarkan, Martin Reichard, Carl Smith

Turkish Journal of Zoology

Despite the ecological importance and globally threatened status of freshwater bivalves, the freshwater mussel fauna of Turkey has hitherto received little attention. The aim of this study was to describe the ecology of freshwater mussels of the Lake Sapanca basin (northwest Turkey) to provide baseline data against which to measure future trends. Five native mussel species belonging to 3 genera were encountered in surveys: Anodonta cygnea, A. anatina, Unio pictorum, U. crassus, and Dreissena polymorpha. In addition, an invasive species from Asia, A. woodiana, was recorded in the region for the first time. A. cygnea and U. pictorum were the …


An Evaluation Of The Water Quality Of Yuvarlakçay Stream,In The Köycegiz-Dalyan Protected Area, Sw Turkey, Ni̇lgün Kazanci, Muzaffer Dügel Jan 2000

An Evaluation Of The Water Quality Of Yuvarlakçay Stream,In The Köycegiz-Dalyan Protected Area, Sw Turkey, Ni̇lgün Kazanci, Muzaffer Dügel

Turkish Journal of Zoology

The longitudinal and seasonal distribution of macroinvertebrates and the physical and chemical variables of Yuvarlak Stream in the Köycegiz-Dalyan Protected Area in South-Western Turkey were studied between April 1992 and April 1993. The diversity, frequency, dominance, abundance and similarity of macroinvertebrates through the year were recorded. In addition, the Belgian Biotic Index was used as a biological criterion for the assessment of water quality for the first time in Turkey. According to the physico-chemical variables and the distribution of benthic macroinvertebrates, continuous slight and moderate organic pollution exists in the stream. The monitoring of the water quality of Yuvarlakçay Stream …